New signing Sébastien Squillaci is unlikely to make his debut for Arsenal as he is lacking match fitness after missing Sevilla's Champions League play-off with Braga last week to avoid being cup-tied. Fellow centre-back Laurent Koscielny returns after a ban so there is no need for the manager, Arsène Wenger, to rush Squilacci back into action. Blackburn may have their top-scorer last season, David Dunn, back after the midfielder recovered from a groin injury but Keith Andrews will be missing with a similar problem. Richard Flower